Quick answers
- Which hospitals does Brent L. Hallmark work at?
- Medicare's official clinician data lists Brent L. Hallmark at 1 hospital: Monroe Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Brent L. Hallmark see patients?
- Medicare's clinician data lists 2 practice locations, including Aberdeen, MS and Olive Branch, MS. Call before your visit to confirm the address.
- What is Brent L. Hallmark's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Brent L. Hallmark accept Medicare assignment?
- Yes. Medicare's clinician data says Brent L. Hallmark accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Brent L. Hallmark?
- (662) 369-2455, as listed in official Medicare / NPI Registry data.
- What is Brent L. Hallmark's NPI number?
- 1093313397. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Brent L. Hallmark works
Medicare's Facility Affiliation Data lists Brent L. Hallmark at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Monroe Regional HospitalAberdeen, MS · Critical Access Hospital · CCN 251302
Practice locations
Addresses where Brent L. Hallmark is enrolled with Medicare (CMS data updated 2026-10-02).
- 400 S Chestnut StAberdeen, MS 39730 (662) 369‑2455
- 6244 Hwy 305 NOlive Branch, MS 38654 (662) 782‑5024
Group practices
Medicare enrollment lists Brent L. Hallmark as a member of these groups (CMS data updated 2026-10-02).
- Fast Pace Mississippi PLLC192 clinicians in the group
- Boa Vida Hospital of Aberdeen MS LLC69 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Aberdeen
Clinicians with the same Medicare primary specialty in Aberdeen, MS — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1093313397 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians